172347480 has 256 divisors, whose sum is σ = 623808000. Its totient is φ = 42177024.

The previous prime is 172347473. The next prime is 172347577. The reversal of 172347480 is 84743271.

It is a happy number.

172347480 is a `hidden beast` number, since 172 + 3 + 4 + 7 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 759127 + ... + 759353.

It is an arithmetic number, because the mean of its divisors is an integer number (2436750).

Almost surely, 2^172347480 is an apocalyptic number.

172347480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172347480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311904000).

172347480 is an abundant number, since it is smaller than the sum of its proper divisors (451460520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172347480 is a wasteful number, since it uses less digits than its factorization.

172347480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 172347480 is about 13128.1179153754. The cubic root of 172347480 is about 556.5040285670.

The spelling of 172347480 in words is "one hundred seventy-two million, three hundred forty-seven thousand, four hundred eighty".